> I want a physical rescue floppy. (I am relucant to depend on my > Iomega Zip drive, as they appear to provide MacOS-only software for > it. My CD drive is read-only, and somewhat unreliable.) >=20 > Under Disk Copy (version 6.3.3), boot-floppy-hfs.img does yield a > virtual floppy disk, which Apple's Finder says has `2.6 MB on disk > (2,801,704 bytes) for 11 items'. Yet it is supposedly a 1.4 MB disk. > What gives?
did you double click the image file? if so you likely ruined it, disc copy will mount the image read-write then MacOS will probably see the `macos' on it is fake and remove the boot blocks. =20 here is a howto on making a boot floppy from image in macos i wrote some time ago: ---begin--- > after a earlier message i did some testing of dd floppy images and > Apple's disk copy 6.3.3, a friend of mine claimed it would make > floppies from dd images with no special effort, i however had to > fsck > with it to get it to work... but it DOES work: > > you must set the file type and creator of the dd image to type: > `DDim' > Creator: ddsk > > then LOCK THE FILE, do this before you even attempt to touch it with > Disk copy, it will loop back mount the image read-write at the drop > of > a hat, and if it does that MacOS will of course helpfully remove the > boot blocks ruining the floppy image. > > run Disk Copy, and select `Make Floppy' from the Utilities menu, > select the LOCKED image file from the resulting dialog. it will ask > you to insert a floppy, then ask if you really want to erase > it. (yup were using macos alright...) it should sit there for awhile > working on it and when done it should eject the floppy. > > when the floppy is ejected SET THE WRITE PROTECT TAB! otherwise if > you accidently mount it in macos, macos will `helpfully' ruin it. > > Dan: add the following line to your maps file for mkhybrid when > creating CD images: > > .img Raw 'ddsk' 'DDim' "floppy_image" > > this will cause the image files on the CD to show up with the > correct > file type/creator in macos. > > for people downloading from ftp you will have to use resedit or > something to change the file types (or try configuring `internet > config' to set files with the .img extension to the above > type/creator, but that probably won't work) > > unless i set these file types Disk copy kept whining about an error > -54 (iirc that means resource fork not found. i hate HFS...) ---end--- <snip> Ethan Benson http://www.alaska.net/~erbenson/ Thanks, Ethan. That solved the problem with the weird disk size. Now I notice that the version of miBoot in the BootX distribution _does_ have the right MacOS type and creator, and it looks as though this got broken when putting it into Debian. (That is, the mkboot.sh file in powerpc-specials/miBoot would be improved with conditional code to fix the type and creator in case we are on pmac.) It now does seem that the boot blocks are not a big deal here, as my new floppy seems to be acting the same as the one I made before by just copying the files. --- John
